Bottle stopper



FIG. 1 is a perspective view from the right side showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

The broken lines showing the bottle in all the Figures are for purposes of context and form no part of the new design. 

The ornamental design for a bottle stopper, as shown and described. 